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Air and Fuel› Superchargers, Turbochargers and Components

Garrett

G Series Turbocharger

Name: G Series Turbocharger
Brand: Garrett
SKU: G25-550

$2,728.38 $1,790.90 Save $937.48

SKU: G25-550

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Overview

The Garrett G25-550 G Series turbocharger is a compact, high-performance unit designed for enthusiasts seeking significant power gains. It features an advanced G-Series compressor wheel and a revolutionary aero G-Series Turbine Wheel made from Mar-M Alloy, capable of withstanding temperatures up to 1050°C. This turbocharger is suitable for engine displacements ranging from 1.4L to 3.0L and can produce between 300-550 horsepower. It includes essential fittings for oil feed (-4AN) and coolant (-6AN).

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The Garrett G25-550 G Series turbocharger represents a leap forward in small-frame turbocharger technology, offering up to 550 horsepower from a compact package. It utilizes a fully-machined, CFD-engineered compressor wheel with advanced aerodynamics that increase airflow and efficiency compared to previous generations. The turbine wheel is constructed from a high-temperature Mar-M Alloy, rated for up to 1050°C, and features new aero for improved flow and response. Key specifications include a 48mm compressor wheel inducer and a 60mm exducer with a 65 trim, and a .70 A/R compressor housing. The turbine side features a 54mm inducer and a 49mm exducer with an 84 trim. The turbo comes equipped with a -4AN oil feed fitting (with a 1mm orifice restrictor) and two -6AN coolant fittings. The center housing and backplate are integrated into a one-piece design for enhanced durability and safety. This turbocharger is designed for engines with displacements between 1.4L and 3.0L. It's important to note that performance results are highly dependent on vehicle modifications and proper tuning/calibration. Garrett also advises that maximum allowable turbocharger speed is 185,000 RPM, and a speed sensor kit (sold separately) can be installed to monitor shaft speed and prevent overspeed conditions. This sensor is not compatible with older GT and GTX models.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	Garrett
Part Number	G25-550
Category	Air and Fuel

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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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